Question

current attempt in progress
which one of the following actions will take place if an object in unstable equilibrium is slightly displaced
o its potential energy will decrease.
o the object will move in the direction opposite that of the displacement.
o its kinetic energy will decrease.
o the object will stop moving as soon as it reaches a place of stable equilibrium.

Explanation:

In unstable equilibrium, when an object is slightly displaced, it moves away from its original position. The potential energy of an object in unstable equilibrium is at a maximum. When displaced, it moves to a lower - potential - energy state. So, its potential energy will decrease.

• For the option "The object will move in the direction opposite that of the displacement", in unstable equilibrium, the object moves in the direction of displacement, not opposite.
• If the object is displaced from unstable equilibrium, it gains kinetic energy (since it starts moving), so "Its kinetic energy will decrease" is wrong.
• The object does not stop as soon as it reaches a place of stable equilibrium. There may be over - shooting and oscillations (in some cases) before coming to rest.

Answer:

Its potential energy will decrease.